Millions of people have spoken with Apple’s Siri, but until now no one knew that her real name is Susan Bennett. No one still knows that for sure, and Apple won’t confirm it, but CNN found audio forensic experts that back up the Atlanta-based voice actress’s claims.

On top of her identity, Bennett also revealed one reason why Siri sounds so snippy:

“There are some people that just can read hour upon hour upon hour, and it’s not a problem. For me, I get extremely bored … So I just take breaks. That’s one of the reasons why Siri might sometimes sound like she has a bit of an attitude. Those sounds might have been recorded the last 15 minutes of those four hours.”

Bennett often records dialogue without any idea of where it will be used. “When I first discovered that was my voice,” she said, “to be honest it was a little creepy.” That’s because while Bennet is used to greeting people seeking out help from companies like Delta Airlines, she never expected to have her voice actually interacting with strangers.